Clevis



' UNITED STATES PATENT OFFICE;

LORENZO STOWE, OF ROME, TENNESSEE.

CLEVIS.

' SPECIFICATION forming part of Letters Patent No. 367,074, dated July 26, 1887.

Application filed June 4, 1887. Serial No. 240,242.

To all whom it may concern.-

Be it known that I, LORENZO Srown, a citi zen of the United'States, residing at Home, in the county of Smith and State of Tennessee, have invented certain new and usefulImprovements in Olevises; and I do declare the followwhich form a part of this specification.

This invention relates to means for locking the bolts in clevises; and it consists in the construction and combination of the several parts hereinafter described.

In the drawings, Figure 1 is a perspective View of a clevis with parts broken away; Fig. 2, a perspective view of the bolt; and Fig. 3 is a perspeetiveview of the lock.

A is the clevis; B, the bolt, having the longitudinal bore or channel B; and O is the lock, which. isfheld and rotates in the bore or channel, and is provided with a catch, 0, and the thumb-piece or knob C.

The bore or channel 13 is arranged eccentric to the axis of the bolt. It is arranged preferably with the said axis, but it may be formed at an angle thereto. It is essential that its end at the smaller end of the bolt be eccentric to the axis,while at the head of the bolt it can be at the center, or at the outside of the center, as preferred. It is easier to form it par-- allel with the axis, as shown.

The catch Ois formed on or is attached to the end of the lock at the smaller. end of the bolt. toward and over and be within the limits'of the smaller end of the bolt, and when so turned.

lock by the friction of its thumb-piece bear- The-catch is formed so that it will turn (No model.)

ing on the head of the bolt. I The catch is made preferably by bending the end of the bar or rod which composes the look, but it will be understood that a small disk or arm could be riveted on the end of the rod, so as to serve the same purpose.

The thumb-piece O is so arranged that it will bind upon the head of the bolt when the catch is turned outward, and thus the lock is made fast. Ordinarily there is very little need of any frictional contact more than is provided by having the several parts neatlyfitted together. I prefer to give the special frictional contacts, as hereinbefore explained, in order to provide against extraordinary conditions.

I prefer to make the lock of a single round rod, as shown in Fig.3; but it may be made by having the catch and thumb-pieces first made separately and in such shape that they can be attached by screw-threads or by riveting. The thumb-piece could be a disk or other suitable form. The form shown in Fig. 3 is preferred for its simplicity, cheapness, and efficiency. g

The lock could be seated in a channel or bore in the side of the bolt, in which case it could be easily removed from the bolt when the latter is out of the clevis.

have the bore wholly with the bolt, as'shown. The thumb-piece of the lock may be dispensed with, and'in its stead a small head be formed, which will hold the lock slipping through the bolt. In this case the lock would be operated by force'applied to the catch.

Having thus described my invention,what I claim, and desire to secure by Letters Patent, 1s

1. The combination, with the clevis and the bolt having a longitudinal bore or channel, the end of which at the smaller end of the bolt is eccentric to the axial center of said bolt, of a catch supported on the end of a rotatable rod held in the bore of the bolt, substantially as set forth.

2. The combinatiomwith the clevis and the It is better to v thumb-piece at the head end of the bolt, subthe thumbpiece bent on its opposite end, substantially as set forth. stantiall y as set forth. [0

3. The eo1nbination,with the Movie and the In testimony whereof I affix my signature in bolt having a longitudinal bore or channel, presence oftwo Witnesses.

the end of which at the smaller end of the bolt LORENZO STOWE. is eccentric to the axial center of said bolt, of Witnesses: v

arotatable look formed of a single bar of round L. O. ALEXANDER,

metal having the catch bent on one end and l A. H. YOUNG. 

